Jump to content

Can you tell what it is yet?


Recommended Posts

wouldn't it be alright to turn this wheel w/in a .005" tolerance just buy turning the dia, parting from the parent stock leaving maybe .125" excess, drill and bore the centerhole, face off one end, facing off the other end to finish thickness, all the while using nonferrous shims to keep the jaws from marring it ??? is this the best way?

 

 

I'm not sure I follow you Ty?

 

it started off as a 92mm off cut from a 6 inch (153mm give or take) round bar, turned down to 150mm diameter x 75mm width, so there wasn't much parent stock to begin with

Link to post
Share on other sites

yah i shouldn't have said that let me reword it

 

 

turn down to diameter leaving .125" excess length, drill and bore, face off one end, face off the other end to final length using nonferrous shims in the jaws to keep from marring it

Link to post
Share on other sites
yah i shouldn't have said that let me reword it

 

 

turn down to diameter leaving .125" excess length, drill and bore, face off one end, face off the other end to final length using nonferrous shims in the jaws to keep from marring it

 

 

Well to be honest, I've no idea how they did it because I wasn't watching. I just sent it out with a drawing and a load of other bits and it came back all pristine and shiney

Link to post
Share on other sites
I dunno Pete, I don't see a broach slot for the drive, idler wheel maybe?

 

 

Forgot to mention, there is no broach slot (I assume you meant keyway slot?) because the shaft and wheel are interference fit;

 

the shaft is 25mm, the hole in the wheel 24.95mm (0.05mm smaller) the wheel was shoved in the oven and the shaft in the freezer and the 2 parts assembled (I'd read about it on nother forum), that wheel isn't going anywhere in a hurry now!

Link to post
Share on other sites
Forgot to mention, there is no broach slot (I assume you meant keyway slot?) because the shaft and wheel are interference fit;

 

the shaft is 25mm, the hole in the wheel 24.95mm (0.05mm smaller) the wheel was shoved in the oven and the shaft in the freezer and the 2 parts assembled (I'd read about it on nother forum), that wheel isn't going anywhere in a hurry now!

 

That explains everything I was curious about. Thanks Simon. Show us pictures when the whole unit is up an running....

Link to post
Share on other sites

For anyone that's interested, I've uploaded plans on to my "Sky Drive"

 

available as full AutoCAD (2000) [GRINDER]

or as adobe pdf [ASSEMBLY] [PARTS]

 

available for download here (hopefully, if I've got it right);

 

http://cid-86d4e3ba13ce0d0c.skydrive.live....px/.Public?uc=3

 

Let me know if it's not working and I'll try and figure out what I've done wrong

Edited by Simon Attwood
Link to post
Share on other sites

I should be receiving delivery of a few more parts next week :D

Link to post
Share on other sites

IMG_0225.jpg

 

IMG_0227.jpg

 

a nice clean bit of water jet cutting ;)

Link to post
Share on other sites
  • 1 month later...
Simon, if that's aluminum, I hope it's not going in a rolling mill...

 

 

Hmmm, Now that you come to mention it, Mike <_<

 

this has been floating around my office for a while now!

 

IMG_0308.jpg

 

80mm Width 150mm Diameter in EN8 steel, nice big linear bearings and a 30mm shaft

 

once the grinder is done, see if you can guess the next project :blink:

Link to post
Share on other sites
If you can get 3 hp, get it.

 

 

Looks like it might get 4 horsies!! :rolleyes:

 

IMG_0310.jpg

 

IMG_0311-1.jpg

 

3 Phase/3 KW

 

just need the inverter/speed controller now

Link to post
Share on other sites

Damn & Blast

 

my cunning plan foiled!

 

The motor is a freebie, practically new and pulled off a job. Trouble is I can't get a an inverter/speed controller bigger than 2.2kw.

Link to post
Share on other sites
  • 1 month later...

Not far to go!!

 

IMG_0404.jpg

 

IMG_0406.jpg

 

IMG_0410.jpg

 

IMG_0416.jpg

 

I just need the tool arm and a motor and some belts!!!!

Edited by Simon Attwood
Link to post
Share on other sites
Not far to go!! ... I just need the tool arm and a motor and some belts!!!!

 

I think it's stout enough. Do you have access to a variable frequency drive? That would solve your inverter problem and give you a variable speed grinder at the same time.

Link to post
Share on other sites
I think it's stout enough. Do you have access to a variable frequency drive? That would solve your inverter problem and give you a variable speed grinder at the same time.

 

 

Just in case it isn't stout enough, I've left an option to put an extra plate between the uprights to stiffen it further if necessary ;)

 

The variable frequency drives that I've seen only go up to 2.2kw, so that means the freebie 3kw/3ph motor can't be used on a 1ph supply.

 

So it's a 2.2kw and variable frequency drive that I'll be saving up for

Link to post
Share on other sites

IMG_0423.jpg

 

getting and egg normous sense of satisfaction as it comes together, just got to save up a few quid for the motor/inverter/speed controller package

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...